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| author | Kees Cook <keescook@chromium.org> | 2016-07-25 13:50:36 -0700 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2016-07-25 13:50:36 -0700 |
| commit | 74e630a7582e6b3cb39559d712a0049f08dea8a0 (patch) | |
| tree | 98a752412dcfc74d802024c1d9e8c541b93174f9 /include/linux/dma-buf.h | |
| parent | 35da60941e44dbf57868e67686dd24cc1a33125a (diff) | |
| parent | 523d939ef98fd712632d93a5a2b588e477a7565e (diff) | |
Merge tag 'v4.7' into for-linus/pstore
Linux 4.7
Diffstat (limited to 'include/linux/dma-buf.h')
| -rw-r--r-- | include/linux/dma-buf.h | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/include/linux/dma-buf.h b/include/linux/dma-buf.h index 3fe90d494edb..4551c6f2a6c4 100644 --- a/include/linux/dma-buf.h +++ b/include/linux/dma-buf.h @@ -112,19 +112,24 @@ struct dma_buf_ops { * @file: file pointer used for sharing buffers across, and for refcounting. * @attachments: list of dma_buf_attachment that denotes all devices attached. * @ops: dma_buf_ops associated with this buffer object. + * @lock: used internally to serialize list manipulation, attach/detach and vmap/unmap + * @vmapping_counter: used internally to refcnt the vmaps + * @vmap_ptr: the current vmap ptr if vmapping_counter > 0 * @exp_name: name of the exporter; useful for debugging. * @owner: pointer to exporter module; used for refcounting when exporter is a * kernel module. * @list_node: node for dma_buf accounting and debugging. * @priv: exporter specific private data for this buffer object. * @resv: reservation object linked to this dma-buf + * @poll: for userspace poll support + * @cb_excl: for userspace poll support + * @cb_shared: for userspace poll support */ struct dma_buf { size_t size; struct file *file; struct list_head attachments; const struct dma_buf_ops *ops; - /* mutex to serialize list manipulation, attach/detach and vmap/unmap */ struct mutex lock; unsigned vmapping_counter; void *vmap_ptr; @@ -188,9 +193,11 @@ struct dma_buf_export_info { /** * helper macro for exporters; zeros and fills in most common values + * + * @name: export-info name */ -#define DEFINE_DMA_BUF_EXPORT_INFO(a) \ - struct dma_buf_export_info a = { .exp_name = KBUILD_MODNAME, \ +#define DEFINE_DMA_BUF_EXPORT_INFO(name) \ + struct dma_buf_export_info name = { .exp_name = KBUILD_MODNAME, \ .owner = THIS_MODULE } /** |